Tricycle seat



FIG. 1 is a left-side elevational view of a tricycle seat showing ournew design, with the ride-side elevational view being a mirror imagethereof;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front elevational view thereof; and,

FIG. 5 is a rear elevational view thereof.

The ornamental design for a tricycle seat, as shown and described.